Pith Number

pith:XECZU2MG

pith:2016:XECZU2MGVSE4MHZLVBZVVHPNUN

not attested not anchored not stored refs pending

Nondeterministic quantum communication complexity: the cyclic equality game and iterated matrix multiplication

Harry Buhrman, Jeroen Zuiddam, Matthias Christandl

arxiv:1603.03757 v2 · 2016-03-11 · quant-ph · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XECZU2MGVSE4MHZLVBZVVHPNUN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:23:57.270479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9059a6986ac89c61f2ba8735a9deda3745129691180c27fc57124e2a37aee9b

Aliases

arxiv: 1603.03757 · arxiv_version: 1603.03757v2 · doi: 10.48550/arxiv.1603.03757 · pith_short_12: XECZU2MGVSE4 · pith_short_16: XECZU2MGVSE4MHZL · pith_short_8: XECZU2MG

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XECZU2MGVSE4MHZLVBZVVHPNUN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b9059a6986ac89c61f2ba8735a9deda3745129691180c27fc57124e2a37aee9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93d40f684ec85882d6faeaf38c6142df7b3894db1d1011f34a5d477116e028db",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-03-11T20:46:57Z",
    "title_canon_sha256": "369a55f635ab736ae4ed7d2293f725d87b2d0d945ad4167796389152e3ef3113"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.03757",
    "kind": "arxiv",
    "version": 2
  }
}